he was 22, she was 19. according to mormon doctrine, ann and mitt were now bound forever, into eternity. >> it seems like as fabled in romance as we've ever seen, that they fell in love at first sight at 15, and that's quite marvelous. so, of course, that's a relationship you want to sustain for all eternity, and mormonism promises that. you are already sealed as a unit for on into the eternities. >> narrator: they began to raise a family, and by the time mitt was 24, he headed for a graduate school his dad had wanted to attend. >> one of george's ambitions in life when he was a young man was to go to harvard business school. and george never ended up doing that, didn't graduate college. >> narrator: mitt romney arrived on the harvard campus at just the moment a new, radical approach to business was being taught. >> he was at harvard business school at the time of a real revolution sweeping through this place that the american industrial corporation was kind of deeply diseased and troubled, in a way that wa